<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
    </head>
    <body>
        <script>
            var name = 'lucy';
            var age = 20;
            // 在 info 中获取 name 值和 age 值 并且 age 值+1
            // 做法：使用模板字符串 + 表达式实现
            // 模板字符串符号写法：``
            // 表达式：${变量名称}
            var info = `name is ${name}, age is ${age + 1}`;
            console.log(info);
        </script>
    </body>
</html>
